Metering pump



FIG. 1 is a front view of a metering pump;

FIG. 2 is a right view of the metering pump of FIG. 1;

FIG. 3 is a left view of the metering pump of FIG. 1;

FIG. 4 is a top view of the metering pump of FIG. 1;

FIG. 5 is a bottom view of the metering pump of FIG. 1; and,

FIG. 6 is a perspective view of the metering pump of FIG. 1. 

CLAIM The ornamental design for a metering pump, as shown and described. 